Post a hijackthis log.
I'm having the exact same problem. A file called neois30.exe also keeps reappearing on my desktop. There's nothing weird running under my open processes, at least not that I can identify. Nothing obviously weird in my startups either (again, that I can identify, I'm by no means expert). Ran full, updated Ad-Aware and NAV scans.
Here's my log:
Logfile of HijackThis v1.99.1
Scan saved at 2:07:49 PM, on 02/21/2007
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\pctspk.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\Adaptec\Easy CD Creator 5\DirectCD\DirectCD.exe
C:\Program Files\Java\jre1.5.0_09\bin\jusched.exe
C:\WINDOWS\System32\wincrt.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\PROGRA~1\SYMANT~2\VPTray.exe
C:\WINDOWS\DvzCommon\DvzMsgr.exe
C:\Palm\Hotsync.exe
C:\Program Files\Symantec AntiVirus\DefWatch.exe
C:\Program Files\Symantec AntiVirus\SavRoam.exe
C:\WINDOWS\System32\snmp.exe
C:\Program Files\Symantec AntiVirus\Rtvscan.exe
C:\WINDOWS\System32\CCM\CLICOMP\RemCtrl\Wuser32.exe
C:\WINDOWS\System32\CCM\CcmExec.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Java\jre1.5.0_09\bin\jucheck.exe
C:\WINDOWS\explorer.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\unzipped\hijackthis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.gmail.com
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [PCTVOICE] pctspk.exe
O4 - HKLM\..\Run: [iTunesHelper] C:\Program Files\iTunes\iTunesHelper.exe
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\System32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [ATIModeChange] Ati2mdxx.exe
O4 - HKLM\..\Run: [AdaptecDirectCD] "C:\Program Files\Adaptec\Easy CD Creator 5\DirectCD\DirectCD.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_09\bin\jusched.exe"
O4 - HKLM\..\Run: [Windows Critical Alert] "C:\WINDOWS\System32\wincrt.exe"
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~2\VPTray.exe
O4 - HKLM\..\Run: [MSConfig] C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe /auto
O4 - Global Startup: Dataviz Messenger.lnk = C:\WINDOWS\DvzCommon\DvzMsgr.exe
O4 - Global Startup: HOTSYNCSHORTCUTNAME.lnk = C:\Palm\Hotsync.exe
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_09\bin\ssv.dll
O17 - HKLM\System\CCS\Services\Tcpip\..\{1489CE17-E0F4-4042-AEB6-0FC03F4FC1A4}: Domain = win.ad.jhu.edu
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: SearchList = ad.jhu.edu,win.ad.jhu.edu,hosts.jhmi.edu,jhmi.edu,jhu.edu
O17 - HKLM\System\CS1\Services\Tcpip\..\{1489CE17-E0F4-4042-AEB6-0FC03F4FC1A4}: Domain = win.ad.jhu.edu
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: SearchList = ad.jhu.edu,win.ad.jhu.edu,hosts.jhmi.edu,jhmi.edu,jhu.edu
O17 - HKLM\System\CS2\Services\Tcpip\..\{1489CE17-E0F4-4042-AEB6-0FC03F4FC1A4}: Domain = win.ad.jhu.edu
O17 - HKLM\System\CCS\Services\Tcpip\Parameters: SearchList = ad.jhu.edu,win.ad.jhu.edu,hosts.jhmi.edu,jhmi.edu,jhu.edu
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\System32\NavLogon.dll
O23 - Service: Symantec Event Manager (ccEvtMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
O23 - Service: Symantec Settings Manager (ccSetMgr) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
O23 - Service: Symantec AntiVirus Definition Watcher (DefWatch) - Symantec Corporation - C:\Program Files\Symantec AntiVirus\DefWatch.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: IMAPI CD-Burning COM Service (ImapiService) - Roxio Inc. - C:\WINDOWS\System32\ImapiRox.exe
O23 - Service: iPod Service (iPodService) - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: SAVRoam (SavRoam) - symantec - C:\Program Files\Symantec AntiVirus\SavRoam.exe
O23 - Service: Symantec Network Drivers Service (SNDSrvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe
O23 - Service: Symantec SPBBCSvc (SPBBCSvc) - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\SPBBC\SPBBCSvc.exe
O23 - Service: Symantec AntiVirus - Symantec Corporation - C:\Program Files\Symantec AntiVirus\Rtvscan.exe
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Many thanks to anyone with any ideas! I'm surprised that I haven't been able to find any mention of this one anywhere. Maybe my Google-fu is weak.

